ICS9248-127 Datasheet, PDF (8/14 Pages) Integrated Circuit Systems – Frequency Generator & Integrated Buffers for PENTIUM/ProTM

ICS9248 - 127
Electrical Characteristics - CPU
TA = 0 - 70C; VDD=3.3V +/-5%; CL = 20 pF (unles s otherwis e s pecified)
PA RA M ETER
Output Impedance
Output Impedance
SYM BOL
RD SP 2B1
RD
SN
2
1
B
CONDITIONS
Vo =VD D * (0.5)
Vo =VD D * (0.5)
Output High Voltage
VOH2B IOH = -12 mA
Output Low Voltage
VOL2B IOL = 12 mA
Output High Current
IOH2B VOH = 1.7 V
Output Low Current
Ris e Time¹
Fall Time¹
Duty Cycle¹
Skew window¹
Jitter, Cycle-to-cycle¹
IO L 2 B
t r2 B
t f2 B
dt2B
tsk2B
t j cy c-cy c2 B
VOL = 0.7 V
VOL = 0.4 V, VOH = 2.4 V
VOH = 2.4 V, VOL = 0.4 V
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
1_{Guaranteed by des ign, not 100% tes ted in production.}
M IN
10
10
2.0
19.0
0.4
0.4
48.0
TYP M A X UNITS
20
Ω
20
Ω
2.3
V
0.2
0.4
V
-41 -19 mA
37.0
mA
1.28 2.0 ns
1.49 2.0 ns
54.8 58.0 %
222 250 ps
152 250 ps
Electrical Characteristics - 24MHz, 48MHz, REF
TA = 0 - 70C; VDD=3.3V +/-5%; CL = 20 pF (unles s otherwis e s pecified)
PA RA M ETER
Output Impedance
Output Impedance
SYM BOL
RD SP 51
RD SN 51
CONDITIONS
Vo =VDD*(0.5)
Vo =VDD*(0.5)
Output High Voltage
VO H 5
IOH = -14 mA
Output Low Voltage
VO L5
IOL = 6.0 mA
Output High Current
IO H 5
VO H = 2.0 V
Output Low Current
Ris e Time¹
Fall Time¹
Duty Cycle¹
Jitter¹
IO L 5
tr5
tf5
dt5
tjabs5
VO L = 0.8 V
VO L = 0.4 V, VOH = 2.4 V
VO H = 2.4 V, VOL = 0.4 V
VT = 1.5 V,
VT = 1.5 V
1_{Guaranteed by des ign, not 100% tes ted in production.}
M IN TYP M A X UNITS
20
60
Ω
20
60
Ω
2.4
2.9
V
0.25 0.4
V
-42 -20 mA
10
18
mA
1.74 4.0 ns
2.05 4.0 ns
45 53.2 55
%
307 800 ps
8